OBJ Model into Mcreator 2020.2

So i want to put a model that is larger than the minecraft default size limit allow, and the only format that i found that support larger models is the obj, but everytime that I put the model into the game, it load the model but with a black texture. i've been looking for the whole internet to find smth about this but found nothing that helps, can anyone help me with this?

note: the version i'm working with is the 2020.4 (1.12.2 in minecraft) but i'm using a plugin that generate a 1.12.2 workspace, and I also tryed with the version 2020.2 and didn't worked